| 1. | the fourth letter of the English alphabet, a consonant. |
| 2. | any spoken sound represented by the letter D or d, as in dog, ladder, ladle, or pulled. |
| 3. | something having the shape of a D. |
| 4. | a written or printed representation of the letter D or d. |
| 5. | a device, as a printer's type, for reproducing the letter D or d. |
| 1. | de (used in French names as an elided form of de): Charles Louis d'Albert. |
| 2. | di (used in Italian names as an elided form of di): Gabriele d'Annunzio. |
| Pronunciation Spelling. contraction of do or did before you: How d'you like your eggs cooked? D'you go to the movies last night? |
| 1. | contraction of had: I was glad they'd gone. |
| 2. | contraction of did: Where'd they go? |
| 3. | contraction of should or would: He'd like to go. I'd like to remind you of your promise. |
| 4. | contraction of -ed: She OK'd the plan. |
| 1. | the fourth in order or in a series. |
| 2. | (sometimes lowercase ) (in some grading systems) a grade or mark, as in school or college, indicating the quality of a student's work as poor or barely passing. |
| 3. | (sometimes lowercase ) a classification, rating, or the like, indicating poor quality. |
| 4. | Music.
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| 5. | (sometimes lowercase ) the Roman numeral for 500. Compare Roman numerals. |
| 6. | Chemistry. deuterium. |
| 7. | Electricity.
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| 8. | Biochemistry. aspartic acid. |
| 9. | a symbol for a shoe width size narrower than E and wider than C. |
| 10. | a proportional brassiere cup size larger than C. |
| 1. | (in prescriptions) give. Origin: < L dā ![]() |
| 2. | date. |
| 3. | daughter. |
| 4. | day. |
| 5. | deceased. |
| 6. | deep. |
| 7. | degree. |
| 8. | delete. |
| 9. | British. pence. Origin: < L denāriī ![]() |
| 10. | British. penny. Origin: < L denārius ![]() |
| 11. | Physics. density. |
| 12. | depth. |
| 13. | deputy. |
| 14. | dialect. |
| 15. | dialectal. |
| 16. | diameter. |
| 17. | died. |
| 18. | dime. |
| 19. | dividend. |
| 20. | dollar; dollars. |
| 21. | dose. |
| 22. | drachma. |
| d 2 abbr.
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D 1
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| D 2 abbr.
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| down quark n. Abbr. d A quark with a charge of - 1/3 , a mass about 20 times that of the electron, and a downward spin. It is a component of protons and neutrons. See Table at subatomic particle. |
D
A Nasdaq stock symbol specifying that the stock is a new issue.
Investopedia Commentary
Nasdaq-listed securities have four or five characters. If a fifth letter appears, it identifies the issue as other than a single issue of common stock or capital stock
See also: Nasdaq, Stock Symbol
Also spelled: D
d
D 1
The symbol for the isotope deuterium.
D 2
abbr.
dexter
diffusing capacity
dead space
D. abbr.
diopter
dose
D
1. "The Data Language." MS-DOS 4GL.
2. A Haskell-like language, with type classes.
E-mail:
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